Solid State PhysicsThis book provides an introduction to the field of solid state physics for undergraduate students in physics, chemistry, engineering, and materials science. |
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Page 471
... neutron , the crystal is in a state with phonon numbers ns . Conservation of energy requires that - E ' E = - Σηωκ Δημο Anks = nks nks - nusi ks ( 24.3 ) i.e. , the change in the energy of the neutron is equal to the energy of the ...
... neutron , the crystal is in a state with phonon numbers ns . Conservation of energy requires that - E ' E = - Σηωκ Δημο Anks = nks nks - nusi ks ( 24.3 ) i.e. , the change in the energy of the neutron is equal to the energy of the ...
Page 472
... neutron and an atomic nucleus of the crystal , and r is the neutron coordinate . The interaction ( 24.4 ) is unaffected by a transformation that shifts the neutron coordinate r by any Bravais lattice vector R , and also permutes the ion ...
... neutron and an atomic nucleus of the crystal , and r is the neutron coordinate . The interaction ( 24.4 ) is unaffected by a transformation that shifts the neutron coordinate r by any Bravais lattice vector R , and also permutes the ion ...
Page 790
Neil W. Ashcroft, N. David Mermin. Theory of the Scattering of Neutrons by a Crystal Let a neutron with momentum p be scattered by a crystal and emerge with momentum p ' . We assume that the only degrees of freedom of the crystal are ...
Neil W. Ashcroft, N. David Mermin. Theory of the Scattering of Neutrons by a Crystal Let a neutron with momentum p be scattered by a crystal and emerge with momentum p ' . We assume that the only degrees of freedom of the crystal are ...
Contents
The Drude Theory of Metals | 1 |
The Sommerfeld Theory of Metals | 29 |
Failures of the Free Electron Model | 57 |
Copyright | |
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alkali atomic band structure Bloch boundary condition Bragg plane Bravais lattice Brillouin zone calculation carrier densities Chapter coefficients collisions conduction band conduction electrons contribution crystal momentum density of levels dependence described determined Drude effect electric field electron gas electron-electron electronic levels energy gap equilibrium example Fermi energy Fermi surface Figure frequency given Hamiltonian hexagonal holes impurity independent electron approximation insulators integral interaction ionic crystals k-space k₂ lattice point linear magnetic field metals motion nearly free electron neutron normal modes Note number of electrons one-electron levels orbits periodic potential perpendicular phonon Phys plane waves primitive cell primitive vectors problem properties quantum reciprocal lattice vector region result scattering Schrödinger equation semiclassical semiclassical equations semiclassical model semiconductors simple cubic solid solution specific heat sphere spin superconducting symmetry temperature term thermal tight-binding valence valence band vanishes velocity wave functions wave vector zero